Use a hack to prevent privacy banner to be dismissed

Author: Ecarrion

WooCommerce/Classes/ViewRelated/Dashboard/Settings/Privacy/PrivacyBannerPresenter.swift

@@ -92,3 +92,15 @@ extension PrivacyBannerPresenter {
         static let retry = NSLocalizedString("Retry", comment: "Retry title on the notice action button")
     }
 }
+
+extension BottomSheetViewController {
+    /// Temporary hack to prevent the `PrivacyBannerViewController` to be dismissed.
+    /// This should be changed once https://github.com/wordpress-mobile/WordPressUI-iOS/pull/126 is merged.
+    ///
+    public override func dismiss(animated flag: Bool, completion: (() -> Void)? = nil) {
+        if children.first is PrivacyBannerViewController {
+            return
+        }
+        super.dismiss(animated: flag, completion: completion)
+    }
+}